/* =========================================================
   KALYXIA — Design tokens
   ========================================================= */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --bg:            #0A0C11;
  --bg-alt:        #12151D;
  --bg-card:       #151924;
  --line:          #232838;
  --text:          #ECEEF3;
  --muted:         #9298AC;
  --accent:        #00E676;   /* vert Kalyxia — identique au favicon */
  --accent-soft:   rgba(0,230,118,.12);
  --positive:      #2FE6B4;   /* mint — "avec Kalyxia" side */
  --negative:      #FF6B6B;   /* soft red — "sans IA" side */
  --radius:        14px;
  --radius-sm:     8px;
  --maxw:          1180px;
  --font-display:  'Space Grotesk', sans-serif;
  --font-body:     'Inter', sans-serif;
  --font-mono:     'JetBrains Mono', monospace;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family:var(--font-display); margin:0; line-height:1.15; font-weight:600; }
p{ margin:0; }

.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }
section{ padding:96px 0; }
@media (max-width:768px){ section{ padding:64px 0; } }

.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--accent);
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:6px; height:6px; border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px var(--accent-soft);
}

h2.section-title{ font-size:clamp(28px,4vw,42px); margin-bottom:12px; }
.section-sub{ color:var(--muted); font-size:17px; max-width:560px; }

.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 24px;
  border-radius:999px;
  font-family:var(--font-body);
  font-weight:600;
  font-size:15px;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform .15s ease, background .15s ease, border-color .15s ease;
  white-space:nowrap;
}
.btn:hover{ transform:translateY(-1px); }
.btn-primary{ background:var(--accent); color:#fff; }
.btn-primary:hover{ background:#33FF94; }
.btn-ghost{ background:transparent; color:var(--text); border-color:var(--line); }
.btn-ghost:hover{ border-color:var(--accent); }

/* ---------- Header ---------- */
header{
  position:sticky; top:0; z-index:50;
  background:rgba(10,12,17,.85);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:18px 24px; max-width:var(--maxw); margin:0 auto;
}
.logo{ display:inline-flex; align-items:center; gap:2px; font-family:var(--font-display); font-weight:700; font-size:19px; letter-spacing:-.01em; }
.logo span{ color:var(--accent); margin-left:2px; }
.logo-mark{ width:27px; height:27px; flex-shrink:0; margin-right:-1px; }
.nav-links{ display:flex; align-items:center; gap:36px; }
.nav-links a{ font-size:14.5px; color:var(--muted); font-weight:500; transition:color .15s; }
.nav-links a:hover, .nav-links a.active{ color:var(--text); }
.nav-cta{ display:flex; align-items:center; gap:20px; }
.burger{ display:none; background:none; border:none; color:var(--text); cursor:pointer; }

@media (max-width:860px){
  .nav-links{
    display:none;
    position:fixed; inset:64px 0 0 0; background:var(--bg);
    flex-direction:column; padding:32px 24px; gap:24px; z-index:40;
  }
  .nav-links.open{ display:flex; }
  .nav-links a{ font-size:18px; }
  .burger{ display:block; }
  .nav-cta .btn-ghost{ display:none; }
}

/* ---------- Hero ---------- */
.hero{ padding-top:90px; padding-bottom:60px; position:relative; overflow:hidden; }
.hero-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:48px; align-items:center; }
@media (max-width:900px){ .hero-grid{ grid-template-columns:1fr; } }
.hero h1{ font-size:clamp(38px,5.4vw,64px); letter-spacing:-.02em; }
.hero h1 em{ font-style:normal; color:var(--accent); }
.hero-sub{ color:var(--muted); font-size:18px; max-width:520px; margin:20px 0 32px; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }

/* signature graphic: automation node diagram */
.node-diagram{ position:relative; width:100%; aspect-ratio:1/1; max-width:440px; margin:0 auto; }
.node{
  position:absolute; background:var(--bg-card); border:1px solid var(--line);
  border-radius:var(--radius-sm); padding:10px 14px; font-family:var(--font-mono);
  font-size:12px; color:var(--muted); display:flex; align-items:center; gap:8px;
}
.node b{ color:var(--text); font-weight:500; }
.node .dot{ width:6px; height:6px; border-radius:50%; background:var(--positive); }
.node-a{ top:6%; left:0; }
.node-b{ top:2%; right:2%; }
.node-c{ top:42%; left:8%; }
.node-d{ bottom:18%; right:0; }
.node-e{ bottom:0; left:20%; }
.node-core{
  position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
  width:120px; height:120px; border-radius:50%;
  background:radial-gradient(circle at 35% 30%, #5CFFA8, var(--accent));
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-display); font-weight:700; color:#fff; font-size:14px;
  box-shadow:0 0 60px rgba(0,230,118,.45);
}
.node-diagram svg{ position:absolute; inset:0; width:100%; height:100%; }
.node-diagram line{ stroke:var(--line); stroke-width:1; }
@media (max-width:900px){ .node-diagram{ max-width:320px; margin-top:20px; } }

.ticker{
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  overflow:hidden; white-space:nowrap; margin-top:70px;
}
.ticker-track{
  display:inline-flex; gap:40px; padding:18px 0;
  animation:scroll 32s linear infinite;
  font-family:var(--font-mono); font-size:13px; color:var(--muted);
}
.ticker-track b{ color:var(--text); }
@keyframes scroll{ from{ transform:translateX(0); } to{ transform:translateX(-50%); } }
@media (prefers-reduced-motion:reduce){ .ticker-track{ animation:none; overflow-x:auto; } }

/* ---------- Avant / Après ---------- */
.compare{ display:grid; grid-template-columns:1fr 1fr; gap:24px; margin-top:48px; }
@media (max-width:820px){ .compare{ grid-template-columns:1fr; } }
.compare-card{
  border:1px solid var(--line); border-radius:var(--radius); padding:32px;
  background:var(--bg-alt);
}
.compare-card.positive{ border-color:rgba(47,230,180,.35); background:linear-gradient(180deg, rgba(47,230,180,.06), transparent 40%), var(--bg-alt); }
.compare-tag{
  font-family:var(--font-mono); font-size:12px; text-transform:uppercase; letter-spacing:.08em;
  display:inline-flex; align-items:center; gap:8px; margin-bottom:18px;
}
.compare-tag.neg{ color:var(--negative); }
.compare-tag.pos{ color:var(--positive); }
.compare-card h3{ font-size:22px; margin-bottom:10px; }
.compare-card > p{ color:var(--muted); margin-bottom:22px; font-size:15px; }
.compare-list li{ display:flex; gap:10px; padding:10px 0; border-top:1px solid var(--line); font-size:14.5px; color:var(--text); }
.compare-list li:first-child{ border-top:none; }

/* ---------- Cards grid (expertise) ---------- */
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; margin-top:48px; }
@media (max-width:900px){ .grid-3{ grid-template-columns:1fr; } }
.card{
  border:1px solid var(--line); border-radius:var(--radius); padding:30px;
  background:var(--bg-card); transition:border-color .2s;
}
.card:hover{ border-color:var(--accent); }
.card .icon{
  width:44px; height:44px; border-radius:10px; background:var(--accent-soft);
  display:flex; align-items:center; justify-content:center; font-size:20px; margin-bottom:18px;
}
.card h3{ font-size:18px; margin-bottom:10px; }
.card p{ color:var(--muted); font-size:14.5px; }

/* ---------- Stats ---------- */
.stats{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; margin-top:48px; }
@media (max-width:820px){ .stats{ grid-template-columns:1fr 1fr; } }
.stat{ border:1px solid var(--line); border-radius:var(--radius); padding:28px; text-align:left; background:var(--bg-alt); }
.stat .num{ font-family:var(--font-display); font-size:38px; color:var(--accent); font-weight:700; }
.stat .label{ color:var(--muted); font-size:13.5px; margin-top:6px; }

/* ---------- Process timeline (replaces fake testimonials) ---------- */
.timeline{ margin-top:48px; display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
@media (max-width:900px){ .timeline{ grid-template-columns:1fr; } }
.step{ border-top:2px solid var(--accent); padding-top:18px; }
.step .n{ font-family:var(--font-mono); color:var(--accent); font-size:13px; }
.step h4{ font-size:17px; margin:10px 0 8px; }
.step p{ color:var(--muted); font-size:14px; }

/* ---------- About ---------- */
.about{ display:grid; grid-template-columns:.9fr 1.1fr; gap:56px; align-items:center; }
@media (max-width:860px){ .about{ grid-template-columns:1fr; } }
.about-photo{
  aspect-ratio:4/5; border-radius:var(--radius); background:var(--bg-card);
  border:1px solid var(--line); display:flex; align-items:center; justify-content:center;
  font-family:var(--font-mono); color:var(--muted); font-size:13px; text-align:center; padding:20px;
  position:relative; overflow:hidden;
}

/* ---------- Placeholder "portrait en construction" (en attendant la vraie photo) ---------- */
.photo-placeholder{
  position:relative; width:100%; height:100%;
  display:flex; align-items:center; justify-content:center; overflow:hidden;
}

/* fond : grille technique + glow ambiant */
.pf-bg{
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:28px 28px;
  -webkit-mask-image:radial-gradient(circle at 50% 40%, #000 45%, transparent 78%);
          mask-image:radial-gradient(circle at 50% 40%, #000 45%, transparent 78%);
  opacity:.55;
}

/* anneaux orbitaux avec particules */
.pf-orbit{
  position:absolute; top:50%; left:50%; border:1px dashed var(--line); border-radius:50%;
  transform:translate(-50%,-50%);
}
.pf-orbit-1{ width:230px; height:230px; animation:pf-spin 14s linear infinite; }
.pf-orbit-2{ width:170px; height:170px; animation:pf-spin 10s linear infinite reverse; }
.pf-orbit .pf-dot{
  position:absolute; width:7px; height:7px; border-radius:50%;
  background:var(--accent); box-shadow:0 0 10px 2px rgba(0,230,118,.7);
}
.pf-orbit-1 .pf-dot:nth-child(1){ top:-4px; left:50%; margin-left:-4px; }
.pf-orbit-1 .pf-dot:nth-child(2){ bottom:12%; right:-4px; }
.pf-orbit-2 .pf-dot:nth-child(1){ top:50%; right:-4px; margin-top:-4px; }
.pf-orbit-2 .pf-dot:nth-child(2){ bottom:-4px; left:30%; }
@keyframes pf-spin{ from{ transform:translate(-50%,-50%) rotate(0deg); } to{ transform:translate(-50%,-50%) rotate(360deg); } }

/* silhouette au centre, remplie d'un dégradé animé + balayage lumineux */
.pf-silhouette{
  position:relative; z-index:2; width:150px; height:180px;
  -webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 240'><circle cx='100' cy='70' r='55'/><path d='M20 240C20 160 55 135 100 135C145 135 180 160 180 240Z'/></svg>");
          mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 240'><circle cx='100' cy='70' r='55'/><path d='M20 240C20 160 55 135 100 135C145 135 180 160 180 240Z'/></svg>");
  -webkit-mask-size:contain; mask-size:contain;
  -webkit-mask-repeat:no-repeat; mask-repeat:no-repeat;
  -webkit-mask-position:center; mask-position:center;
}
.pf-fill{
  position:absolute; inset:0;
  background:linear-gradient(135deg, var(--accent) 0%, #0a0c11 35%, #0a0c11 65%, var(--accent) 100%);
  background-size:250% 250%;
  animation:pf-fillmove 5s ease-in-out infinite;
}
@keyframes pf-fillmove{
  0%{ background-position:0% 0%; }
  50%{ background-position:100% 100%; }
  100%{ background-position:0% 0%; }
}
.pf-scan{
  position:absolute; left:0; right:0; height:45%;
  background:linear-gradient(to bottom, transparent, rgba(0,230,118,.75), transparent);
  animation:pf-scanmove 3s linear infinite;
}
@keyframes pf-scanmove{
  0%{ top:-45%; }
  100%{ top:100%; }
}

.pf-badge{
  position:absolute; left:50%; bottom:22px; transform:translateX(-50%); z-index:3;
  display:inline-flex; align-items:center; gap:8px; white-space:nowrap;
  font-family:var(--font-mono); font-size:11px; letter-spacing:.05em; text-transform:uppercase;
  color:var(--text); background:rgba(10,12,17,.75); backdrop-filter:blur(4px);
  border:1px solid var(--line); border-radius:999px; padding:7px 14px;
}
.pf-badge .dot{ width:5px; height:5px; border-radius:50%; background:var(--accent); animation:ph-blink 1.6s ease-in-out infinite; }
@keyframes ph-blink{ 0%,100%{ opacity:1; } 50%{ opacity:.25; } }

@media (prefers-reduced-motion:reduce){
  .pf-orbit, .pf-fill, .pf-scan, .pf-badge .dot{ animation:none; }
  .pf-scan{ display:none; }
}
.about h2{ font-size:30px; margin-bottom:6px; }
.about .role{ color:var(--accent); font-family:var(--font-mono); font-size:13px; margin-bottom:20px; display:block; }
.about p{ color:var(--muted); margin-bottom:16px; }
.about-links{ display:flex; gap:14px; margin-top:24px; flex-wrap:wrap; }

/* ---------- FAQ ---------- */
.faq-item{ border-top:1px solid var(--line); }
.faq-item:last-child{ border-bottom:1px solid var(--line); }
.faq-q{
  width:100%; text-align:left; background:none; border:none; color:var(--text);
  font-family:var(--font-body); font-size:17px; font-weight:600; padding:22px 0;
  display:flex; justify-content:space-between; align-items:center; cursor:pointer; gap:20px;
}
.faq-q .plus{ font-family:var(--font-mono); color:var(--accent); font-size:20px; transition:transform .2s; flex-shrink:0; }
.faq-item[open] .plus{ transform:rotate(45deg); }
.faq-a{ padding:0 0 22px; color:var(--muted); font-size:15px; max-width:680px; }

/* ---------- CTA band ---------- */
.cta-band{
  border:1px solid var(--line); border-radius:20px; padding:56px; text-align:center;
  background:radial-gradient(circle at 50% 0%, rgba(0,230,118,.15), transparent 60%), var(--bg-alt);
}
.cta-band h2{ font-size:clamp(26px,3.6vw,38px); margin-bottom:14px; }
.cta-band p{ color:var(--muted); margin-bottom:28px; }
.cta-checks{ display:flex; gap:24px; justify-content:center; flex-wrap:wrap; margin-top:28px; font-family:var(--font-mono); font-size:12.5px; color:var(--muted); }
.cta-checks span{ color:var(--positive); }

/* ---------- Footer ---------- */
footer{ border-top:1px solid var(--line); padding:56px 0 32px; margin-top:40px; }
.foot-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:40px; margin-bottom:40px; }
@media (max-width:700px){ .foot-grid{ grid-template-columns:1fr; } }
.foot-grid h4{ font-family:var(--font-mono); font-size:12px; text-transform:uppercase; letter-spacing:.08em; color:var(--muted); margin-bottom:16px; }
.foot-grid a{ display:block; color:var(--muted); font-size:14.5px; padding:6px 0; transition:color .15s; }
.foot-grid a:hover{ color:var(--text); }
.foot-bottom{ border-top:1px solid var(--line); padding-top:24px; display:flex; justify-content:space-between; color:var(--muted); font-size:13px; flex-wrap:wrap; gap:10px; }

/* ---------- Page header (sub-pages) ---------- */
.page-hero{ padding:64px 0 24px; }
.page-hero .eyebrow{ margin-bottom:20px; }
.page-hero h1{ font-size:clamp(32px,5vw,48px); max-width:720px; }
.page-hero p{ color:var(--muted); font-size:17px; max-width:560px; margin-top:16px; }

/* ---------- Contact / form ---------- */
.contact-grid{ display:grid; grid-template-columns:.85fr 1.15fr; gap:48px; align-items:start; }
@media (max-width:900px){ .contact-grid{ grid-template-columns:1fr; } }
.contact-side .card{ margin-bottom:16px; }
.contact-side .card{ display:flex; gap:16px; align-items:flex-start; padding:22px; }
.contact-side .icon{ margin-bottom:0; flex-shrink:0; }
.contact-side h3{ font-size:15.5px; margin-bottom:4px; }
.contact-side p{ font-size:13.5px; }

.form-card{ border:1px solid var(--line); border-radius:var(--radius); padding:36px; background:var(--bg-card); }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
@media (max-width:560px){ .form-row{ grid-template-columns:1fr; } }
label{ display:block; font-size:13.5px; color:var(--muted); margin-bottom:6px; margin-top:16px; }
input, select, textarea{
  width:100%; background:var(--bg-alt); border:1px solid var(--line); border-radius:var(--radius-sm);
  padding:12px 14px; color:var(--text); font-family:var(--font-body); font-size:14.5px;
}
input:focus, select:focus, textarea:focus{ outline:none; border-color:var(--accent); }
textarea{ resize:vertical; min-height:100px; }
.form-note{ color:var(--muted); font-size:13px; margin-top:16px; }
.form-submit{ margin-top:24px; width:100%; justify-content:center; }
.form-status{ margin-top:14px; font-size:14px; display:none; }
.form-status.ok{ color:var(--positive); }
.form-status.err{ color:var(--negative); }

/* Calendly embed container */
.calendly-embed{
  border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; margin-top:20px;
  height:700px; background:var(--bg-alt);
}

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
  outline:2px solid var(--accent); outline-offset:2px;
}